What’s the Best Movie About Cheating?

                                                                  (Image Credit: Paramount/The Kobal Collection)

This week, “20/20″ explores infidelity from every angle, from private investigators who document cheating to five women who fell for the same man — and then busted him on tape.

Over the years, filmmakers haven’t shied away from this emotionally charged subject.

Vote below to pick your favorite movie about love, cheating and heartbreak — and watch “20/20: Caught in a Bad Romance” online here.

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